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18 October, 11:39

UDP provides unreliable data transfer and therefore

A) should never be used

B) provides data security

C) provides congestion control

D) could be a good choice for loss-tolerant video and audio streams

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Answers (1)
  1. 18 October, 14:45
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    Answer: The answer is d.

    Explanation:

    UDP is a transport protocol (Layer 4 of the OSI model) that has no mechanism to provide a reliable transport between the source process and the destination one, as TCP does.

    Anyway, due to this feature, is specially suitable for real-time applications, like video or audio, provided that the user can accept some loss in the stream.

    Several real-time protocols, like RTP for instance (used for videoconferencing) use UDP as transport protocol.
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